Pollution Research Paper

Vol 33, Issue 04, 2014 ; Page No.(703-707 )

EFFECT OF PH ON GROWTH AND SPORULATION OF NEMATOPHAGOUS FUNGUS - NEMATOCTONUS ROBUSTUS

S. RAMESHBABU, P. SRINIVAS, NAVEEN KUMAR R., ANIRUDH AND R.K. SINGH

Abstract

The plant parasitic nematodes infect the root tissues of the plant causing root galls that lead to reduced water and mineral uptake in the plant root system. Nematophagous fungus are used as biocontrol for the nematodes. Among those Nematoctonus are one of the species used as ioagent. Nematoctonus species produces an extensive mycelium and capture many nematodes with hour glass shaped adhesive knobs on the hyphae. Nematodes become attached to these adhesive knobs and the cuticle of nematode is penetrated by the infective hyphae. The growth and sporulation of N. robustus growing on PDA and CMA at different pH showed their ability to grow in a wide range of pH with better performance at natural soil pH from 7-7.5. Nematoctonus sporulate in a wide range of condition from acidic to alkaline. This can be considered as their ability for better performance in soil with wide range of soil pH

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